Piston-ring-groove-cleaning device



Nov. 9 1926. 1,606,067

L.. FERRELL PISTON RING GROOVE CLEANING DEVICE Filed Jan. 1926 Louis .F'erreZZ Nov. 9, 192%.

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LOUIS FERRELL, OF SIKESTON, MISSOURI, ASSIGNOR- OF ONEJEALF T0 JAMES OTTO HAHS, ONE-FOURTH TO HERSCHEL E.

RANDOLPH, ONE-EIGHTH TO CHARLES C.

KINDRED, AND ONE-EIGHTH TO THOMAS J. KINDRED, ALL OF SIKESTON, MISSOURI.

PISTON-RING-GROOVE-CLEANING DEVICE.

Application filed January 30, 1926.

This invention relates to piston ring groove cleaning devices and has for an important object thereof the provision of a device of this character which may be em ployed with pistons of different diameters and having slots of different widths.

an important object of the invention is to provide a device of this character in which the cleaning implement is readily exchanged to permit use of the device with pistons of different diameters and in the use of which the operator Ina rotate the device in either direction about the piston.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a plan view partially in section showing a groove cleaning tool constructed in accordance wit-h my invention in position for use in cleaning the grooves of a piston of an internal combustion engine;

Figure 2 is a section on the line 22 of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 1;

Figure 4 is a perspective of one of the cleaning tools removed.

Referring now more particularly to the drawings, the numeral 10 indicates an angular bar having at the end of one arm 11 thereof a pivot 12 and provided at the end of the second arm 13 thereof with a handle 14;. The bar 10 is preferably of less thick.- ness than the width of the grooves usually provided in pistons so that it operates within the groove of the piston. The numeral 15 designates a second bar pivoted at one end upon the pivot 12 and including an angular portion 16 which, when the device is being employed with a piston of medium size, lies at right angles to a bisector of the included angle 17 between the arms 11 and 13. The free end of the bar 15 is in the form of a handle 18 which substantially parallels the handle portion 14 when the device is being employed with a piston of the size mentioned.

The central portion of the angular section 16 of the bar is provided in alignment with the bisector of the angle 17 with an opening Serial No. 84,988.

20 for the reception of the tapered shank 21 of a cleaning tool, generally designated at 22. This cleaning tool has the end thereof which opposes the angle 17, when the tool is in apiplied position, split to provide diverging lades 28 which are preferably slightly resilient so that they will urge themselves into engagement with the base 24: of the groove with which they are coacting so that their cutting edges 25 will be properly arranged to remove from the groove any carbon which may be disposed therein. One of these arms operates to remove carbon when the device is rotated in one direction and the second operates as the device is operated in the opposite direction. It will, of course, be understood that the cleaning tools 22 will be pro vided in varying lengths and thicknesses so that pistons of varying diameters and having grooves of varying widths may be treated.

It will also be obvious that the construction hereinbefore set forth is obviously capable of a certain range of change and modification without materially departing from the spirit of the invention and I accordingly do not limit myself to such specific structure except as hereinafter claimed.

I claim 7 1. A tool of the character described comprising a bar provided at one end with a pivot and at its opposite end with a handle and angularly bent intermediate its ends and a second bar engaged at one end with the pivot of the first named bar and having at its opposite end a handle movable into substantially parallel relation with the handle of the first named bar, the last named bar having an intermediate portion confronting the included angle formed by the bending of the first named arm and having at such intermediate section means for supporting a groove cleaning tool in alignment with the bisector of said angle, said cleaning tool having at its inner end diverging arms each provided with a cutting edge.

2. A tool of the character described comprising a bar provided at one end with a pivot and at its opposite end with a handle and angularly bent intermediate its ends and a second bar engaged at one end with the pivot of the first named bar and having at its opposite end a handle movable into substanthe first named bar having an enlargement tially parallel relation With the handle of provided With a tapered socketand a groove the first named bar, the last named bar havcleaning tool having a tapered shank for en- 10 ing an intermediate portion confronting the gagement in said socket.

5 i l d d ngl f r d b th b nding of th In testimony whereof I hereunto afiix my first named arm, said intermediate portion signature. in alignment With the bisector of the angle of LOUIS FERRELL. 

